Food use HDPE hard plastic scool cooler gel pack ice pack for lunch bag

• 15*10*2cm,200ml
• 17*11*1cm,165ml
• 16*11*2cm,300ml
• 24.5*14.5*1.5cm,390ml

• Blue (If you have colors, also can be customized )

• Outer material: food grade HDPE
• Inner material: SAP+purified water

• For Lunch box, this size fit in lunch box to frozen food cold and fresh.

• For cooler bag or cooler box, You can put it in your cooler bag or cooler box when you go out.

• For Perishable products, It it is excessive temperature or humIdity on the way to their destination. However, with careful packaging, ice packs can keep products frozen, or prevent products from freezing. You can prevent melting and thawing in hot weather, like -10 degrees,-15 degrees,-20 degrees and -25 degress.

• For medical, blood, vaccine and chemical products. With the proper combination of insulation and refrigerants, like vacuum insulation panel cooler box and PCM ice packs, they can maintain products within specific temperature ranges.like 4-5 degrees, 2-8 degrees, -25 degrees and so on.

1. Shell is the food grade High density polyethylene, HDPE for short.

2. The inside of the liquid is coolant, we have high polymer absorbent (SAP) and phase change materials(PCM).

3. Safe and environmentally friendly.

4. BPA Free, hard shell

5. Ultrasonic welding machine, not leakage

6. It doesn't have a mess when melting

7. Frozen again and again,save your money

8. Can be recycled.

Materials:

• SAP:
• (Super Absorbent Polymer, SAP) is a kind of new functional Polymer material, it does not dissolve in water, and insoluble in organic solvents, good dispersibility, avirulent insipidity, pressure dehydration, can use repeatedly, bibulous rate can be generated in dozens of seconds gel. It is personal hygiene items, industrial and agricultural production, civil construction and other fields are widely used.

• CMC:
• (Carboxyl methyl Cellulose, CMC) CMC is a kind of important Cellulose, is a natural fiber after chemical modification of a kind of water-soluble good polyanionic Cellulose compounds, soluble in hot and cold water, odourless, tasteless, non-toxic.Is a kind of macromolecular chemistry, can swell, swelling in water, can form gel transparent viscous liquid.

• PCM:
• Phase Change Materials (PCMs) are ideal products for thermal management solutions. This is because they store and release thermal energy during the process of melting & freezing (changing from one phase to another). When such a material freezes, it releases large amounts of energy in the form of latent heat of fusion, or energy of crystallisation. Conversely, when the material is melted, an equal amount of energy is absorbed from the immediate environment as it changes from solid to liquid.